From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Blueprint drawing for a serrated pin for a roller.
| Identifier | ExFiles\Box 28\3\ Scan181 | |
| Date | 21th July 1930 | |
| FULL LENGTH OF THREAD MUST NOT BE LESS THAN DIMENSION SHEWN. 7/16" B.S.F. TO GAUGE FULL THRD E.{Mr Elliott - Chief Engineer} CENTRES .500 DIA -.001 .510 DIA -.00025 -.00075 .705" / .710" A/F BRITISH STD SERRATIONS ENLARGED VIEWS 36 SERRATIONS EQUALLY SPACED ALTERATION Location Date Initial 1.875 +.000 -.020 WAS 1 29/32 1/2 DIMENSION WAS 15/32. 1 1/2 DIMENSION WAS 1 13/32 THE FULL THREAD ADDED. E CENTRES ADDED NOTE. RE-DEPTH OF THREAD ADDED 29.3.32 29.3.32 29.3.32 RR RR RR MATERIAL 60-70 TON VIBRAC OR 3 1/2% NICKEL STEEL S.69.D 55-65 TON No. Off per Set: 1 All Dimensions not Limited to be ±.010 To be Machined where Marked / Extra Fine Finish where Marked // Machined all Over Ground where marked G SCALE: -- Traced: R.S. Checked: A.P. Appvd.: Date: 21-7-30 ADAMANT ENGINEERING CO. LTD LUTON. SERRATED PIN FOR ROLLER TYPE: L7-8 P2195 | ||